If A is a matrix of order 3 - 3- then the number of minors in determinant of A are

Name: JEE- Grade 12- Mathematics- Matrices and Determinants- Session 05- W18
Uploaded: 2022-07-04T10:36:42+05:30
Description: If A is a matrix of order 3 × 3 then number of minors in determinant of A are 9 . Since in a 3 × 3 matrix, there are 9 elements and each element corresponds to ...

If A is a matrix of order 3 × 3 then number of minors in determinant of A are 9 . Since in a 3 × 3 matrix, there are 9 elements and each element corresponds to ...

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Standard XII

Mathematics

Minor and Cofactor of a Matrix

If A is a mat...

Question

If $A$ is a matrix of order $3 \times 3,$ then the number of minors in determinant of $A$ are

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Solution

If $A$ is a matrix of order $3 \times 3$ then number of minors in determinant of $A$ are $9 .$
Since in a $3 \times 3$ matrix, there are $9$ elements and each element corresponds to one minor.

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Minor and Cofactor of a Matrix

Standard XII Mathematics

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If A is a matrix of order 3×3, then the number of minors in determinant of A are

If A is a matrix of order 3×3 then number of minors in determinant of A are 9. Since in a 3×3 matrix, there are 9 elements and each element corresponds to one minor.

If $A$ is a matrix of order $3 \times 3,$ then the number of minors in determinant of $A$ are

If $A$ is a matrix of order $3 \times 3$ then number of minors in determinant of $A$ are $9 .$
Since in a $3 \times 3$ matrix, there are $9$ elements and each element corresponds to one minor.